Downregulation of microRNA-185 expression in diabetic patients increases the expression of NOS2 and results in vascular injury

xlomafota13 shared this article with you from Inoreader Downregulation of microRNA-185 expression in diabetic patients increases the expression of NOS2 and results in vascular injury Via Experimental and therapeutic medicine Exp Ther Med. 2021 Dec;22(6):1458. doi: 10.3892/etm.2021.10893. Epub 2021 Oct 19. ABSTRACT The aim of the present study was to investigate the regulatory effect and mechanism of microRNA (miR)-185 in diabetic angiopathy. The expression of miR-185 and nitric oxide synthase 2 (NOS2) in the blood from diabetic patients was examined by reverse transcription-quantitative PCR and enzyme-linked immunosorbent assay. After establishment of diabetic rats, the expression of miR-185 and NOS2 in vascular tissues and blood was also measured. Then, miR-185 was overexpressed in HMEC-1 cells and the expression of NOS2 was determined. Dual-luciferase reporter assay was used to identify the direct interaction between miR-185 and NOS2 mRNA. The expression of NOS2 was upregulated and the expression of miR-185 was downregulated in the blood from patients with diabetes. Vascular tissues and blood of diabetic rats showed similar trends compared with that of h uman. HMEC-1 cells with overexpression of miR-185 had decreased expression of NOS2. Dual-luciferase reporter assay demonstrated the direct binding between miR-185 and NOS2. The present study demonstrates that upregulation of NOS2 in diabetic patients is associated with the downregulation of miR-185, which participates in the progression of diabetes possibly through regulating NOS2 expression. PMID:34737798 | PMC:PMC8561755 | DOI:10.3892/etm.2021.10893 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.